21905510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2053}}^1$

素因数の和:2168

約数の個数: 32

約数和(自身を含む): 43479072

約数和(自身を除く): 21573562

約数列:

[1, 2, 5, 10, 11, 22, 55, 97, 110, 194, 485, 970, 1067, 2053, 2134, 4106, 5335, 10265, 10670, 20530, 22583, 45166, 112915, 199141, 225830, 398282, 995705, 1991410, 2190551, 4381102, 10952755, 21905510]

約数ペア:

[(1, 21905510), (2, 10952755), (5, 4381102), (10, 2190551), (11, 1991410), (22, 995705), (55, 398282), (97, 225830), (110, 199141), (194, 112915), (485, 45166), (970, 22583), (1067, 20530), (2053, 10670), (2134, 10265), (4106, 5335)]